摘要
传统内燃机汽车,多采用真空助力伺服制动系统来实现助力。其真空源来自于发动机进气歧管。现在汽车随着发动机排量的减小和负载的增加,真空度在某些工况下将出现严重不足的问题,尤其是高海拔地区。通过对发动机EMS的标定,实现了对整车真空助力系统的适应性优化。整车道路性试验表明,优化后的真空助力系统满足整车使用要求。
For traditional internal combustion engine vehicles, the brake system uses a vacuum brake booster servo system to achieve power. Its vacuum source comes from the engine intake manifold. Now, with engine displacement decreases and the load increases, the degree of vacuum in certain conditions will be a serious shortage,especially in high altitude areas. Based on the engine EMS calibration, realized the adaptability of the vehicle vacuum booster system optimization. Vehicle road test showed that the optimized vacuum booster system meets the vehicle requirements.
出处
《机电工程技术》
2014年第2期73-77,共5页
Mechanical & Electrical Engineering Technology
关键词
EMS标定
制动系统
高海拔
空调控制
怠速控制
EMS calibration
brake system
high altitude
air-conditioning control
idle speed control
